Lenovo X1 Carbon (Windows 8, 2014) UEFI Secure boot only, alternate boot device prohibited, i.e. the UEFI interface is not even accessible. Lenovo has been configuring this way for some time. It does not seem to be a faithful production of the EFI standard, IMHO.
Re: installed Linux on about 15 laptops, only one failed: a Lenovo
i.e. the UEFI interface is not even accessible. Lenovo has been configuring this way for some time. It does not seem to be a faithful production of the EFI standard, IMHO.